Finding the Third Proportional to 902,213 and 1,878,826

Step by Step Solution

1. Step 1: Write the proportion equation
   902,213 : 1,878,826 = 1,878,826 : x
2. Step 2: Convert to fraction form
   902,213/1,878,826 = 1,878,826/x
3. Step 3: Cross multiply
   902,213x = 1,878,826 × 1,878,826
4. Step 4: Simplify right side
   902,213x = 3,529,987,138,276
5. Step 5: Solve for x
   x = 3,529,987,138,276/902,213
6. Step 6: Final answer
   x = 3,912,587.31